BGS mineralogy and petrology collection record

Sample number S42798; COLLNOYB615;
Sample Donor Lawrie,T.R.M.
Rock name 'Original entry: Coarse Dark Hornblende Or Hornblende-Pyroxene Gneiss Much Invaded By Pegmatite'
Stratigraphy Not entered
Comments Coarse dark hornblende or hornblende-pyroxene gneiss much invaded by pegmatite; from band of variable pegmatite-veined ultrabasic rock between acid hornblende gneiss and psammite to W
Locality details Coir' a' Bhoganaich, 1000 yds S 42 deg W of A' Chuil
50k map sheet Loch Eil (62)

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Map reference NM 9384 9171
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


S42798

Cross Polarized, S42798

Plane Polarized, S42798

Plane Polarized, S42798